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Behavior of MgO·Al_2O_3 Based Inclusions in Alloy Steel During Refining Process 被引量：6

Behavior of MgO·Al_2O_3 Based Inclusions in Alloy Steel During Refining Process
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摘要 The transformation of MgO· Al2O based inclusions in alloy steel during refining has been studied by in- dustrial trials. Besides Factsage software is used to sttidy the formation and modification of spinel inclusions in alloy steel using calcium treatment during refining process. The results show that the transformation sequence of inclu- sions is：MgO· Al2O→CaO-Al2O3-MgO complex inclusions--→MgO· Al2O, and under present experimental con- dition, in order to avoid forming MgO· Al2O inclusions the content of dissolved Ca in the molten steel has to reach 1 × 10-6. Also the results show that when more calcium was added to molten steel, the content of Alz 03 and MgO will be lower. Besides, increasing the content of CaO in the inclusions will increase even if tlae content of SiO2 changes little. The transformation of MgO· Al2O based inclusions in alloy steel during refining has been studied by in- dustrial trials. Besides Factsage software is used to sttidy the formation and modification of spinel inclusions in alloy steel using calcium treatment during refining process. The results show that the transformation sequence of inclu- sions is：MgO· Al2O→CaO-Al2O3-MgO complex inclusions--→MgO· Al2O, and under present experimental con- dition, in order to avoid forming MgO· Al2O inclusions the content of dissolved Ca in the molten steel has to reach 1 × 10-6. Also the results show that when more calcium was added to molten steel, the content of Alz 03 and MgO will be lower. Besides, increasing the content of CaO in the inclusions will increase even if tlae content of SiO2 changes little.
作者 YANG Shu-feng LI Jing-she ZHANG Li-feng Kent Peaslee WANG Zai-fei
机构地区 School of Metallurgical and Ecological Engineering Department of Materials Science and Engineering
出处 《Journal of Iron and Steel Research International》 SCIE EI CAS CSCD 2010年第7期1-6,共6页
基金 Item Sponsored by China Postdoctoral Science Foundation(20080430020)
关键词 alloy steel non-metallic inclusion MgO· Al2O spinel THERMODYNAMICS alloy steel non-metallic inclusion MgO· Al2O spinel thermodynamics
分类号 TF713.3 [冶金工程—钢铁冶金] TG142.41 [金属学及工艺—金属材料]
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参考文献12

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二级参考文献8

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Journal of Iron and Steel Research International
2010年 第7期

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